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the profile width is reduced by 10mm or 0.393700787 inches which is fairly accurate but why would the tread width drop by 1.4 inches?
The 55 and 65 numbers are a ratio of a tire. you now have a taller ratio and a narrower tread.
I pulled my information from tirerack.com
Look, the tires are almost the same in diameter so that doesnt really matter.
The new tire is narrower than the old tire. End of discusion.
the balloning would only matter IF it made the new tire bigger than the old one.
It doesnt. So your trying to worry about something you cant change.
A 65 tire WILL absolutely curve more than a 55. It is inherent in the taller sidewall design.
I dont understant your fixation on it.
It would be like worrying about the weight of a spare tire. You have to have a spare. Now you can take it out but is it worth it?
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